Serum Biomarker of Plaque Vulnerability and Contrast Ultrasound of Carotid Artery

August 22, 2014 updated by: Weon Kim, Kyunghee University Medical Center

Can Serum Biomarker of Plaque Vulnerability be Identified Through the Contrast-enhanced Ultrasound of Carotid Artery

No serum biomarker has qualified for clinical use until now. However several biomarkers, especially markers of inflammatory or proteolytic activity seem to promising in the identification of vulnerable plaques. Moreover, recent study confirmed that contrast-enhanced ultrasound imaging(CEUS) can visualize intraplaque neovascularization and represent the plaque vulnerability. In this study we try to identify indicators through analysis of the relationship between plaque neovascularization seen by CEUS and well known biomarkers such as serum matrix metalloproteinase(MMP)-2, MMP-9, cathepsin family(L,S,V), cystatin C, lipoprotein phospholipase A2, and hs-crp

Study Overview

Study Type

Observational

Enrollment (Anticipated)

120

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Seoul, Korea, Republic of, 130-872
        • Division of Cardiology, Department of Internal Medicine, Kyung Hee University School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

The patients were selected from those who admitted due to chest pain and underwent carotid duplex ultrasound examination at KyungHee university medical center, Seoul, South Korea.

Description

Inclusion Criteria:

  • patients with carotid plaques size more than 2mm by carotid ultrasound

Exclusion Criteria:

  • known allergy to albumin, or to the ultrasound contrast agent
  • the patients with history of carotid endarterectomy and carotid stent
  • acute myocardial infarction, cardiogenic shock
  • connective tissue disease and malignancy
  • creatinine clearance lower than 30ml/min and the history of dialysis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Control
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Peak plasma concentration of Biomarker that is statistically significant different according to the presence of intraplaque neovascularization on contrast enhanced ultrasound of carotid artery
Time Frame: after performing contrast enhanced ultrasound of carotid artery, upto 3 hospital days
after performing contrast enhanced ultrasound of carotid artery, upto 3 hospital days

Secondary Outcome Measures

Outcome Measure
Time Frame
the number of the patients with history of cardiovascular event including myocardial infarction, cerebral vascular event and peripheral arterial disease and the number of 1 year clinical outcome of cardiovascular event
Time Frame: after performing contrast enhanced ultrasound of carotid artery, upto 1 year clinical follow up
after performing contrast enhanced ultrasound of carotid artery, upto 1 year clinical follow up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2010

Primary Completion (Actual)

October 1, 2013

Study Completion (Actual)

December 1, 2013

Study Registration Dates

First Submitted

March 23, 2013

First Submitted That Met QC Criteria

April 24, 2013

First Posted (Estimate)

April 29, 2013

Study Record Updates

Last Update Posted (Estimate)

August 25, 2014

Last Update Submitted That Met QC Criteria

August 22, 2014

Last Verified

April 1, 2013

More Information

Terms related to this study

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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